Means for cooling internal-combustion engines and other machinery



A. HENNING.

MEANS FOR COOLING INTERNAL COMBUSTION ENGINES AND OTHER MACHINERY.

APPLICATION FILED OCT. 2, 1918.

1,383,270. Patented June 28, 1921.

INvENTaR UNITED STATES PATENT OFFICE.

ALBERT HENNING, OF LEY'I'ONSTONE, ENGLAND.

(GRANTED UNDER To all whom it may concern Be it known that I, ALBERTHENNING, a citizen of the United Kingdom of Great Britain and Ireland,and resident of 120 Harrow road,1Leytonstone, in the county of Essex,England, have invented certain new and useful Improvements in Means forCooling Internal-Combustion Engines and other Machinery, for which Ihave filed an application in England Sept. 25, 1917, Patent No. 116,819,of which the following is a specification, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to means for cooling various parts of machinerysuch as bearings, pistons or the spaces in which these parts areworking, also for apparatus or parts of same used in laboratories, alsofor apparatus for low temperature desiccation, for reducing bloodpressure and hemorrhage, for scientific, domestic, commercial and otherpurposes where a safe and rapid reduction of temperature is required.

The invention may be broadly described as consisting in providing a caseor carrier for a number of flasks, ampuls or equivalents, each chargedwith highly volatile liquid such as ethyl chlorid in conjunction withmeans by which upon certain predetermined movement of the case the saidflasks or ampuls may be consecutively opened and brought to a positionfrom which they will discharge thelr liquid contents into the article tobe cooled, said article being placed in any convenient case, housing orreceptacle for the purpose.

An example of my invent-ion is shown in the accompanying drawings inwhich Figure 1 is a front elevation of a case holding twelve ampulsadapted to be discharged one at a time through the same opening, and

Fig. 2 is a vertical section through the case shown in Fig. 1.

The drawings are largely diagrammatical and I have not thought itnecessary to illustrate the article to be cooled, because, as aboveindicated a very large variety of articles may be operated upon and themeans for holding same may be as desired.

In these drawings a non-rotating chamber a contains a rotatable case 1)into which the ampuls c are removably fitted in radial specification ofLetters Patent. Patented June 28, 1921,

Application filed October 2, 1918. Serial No. 256,633. THE PROVISIONS OFTHE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

through apertures in the rim of the case b. A stop e is fixed to thechamber a and is arranged 111 the path of the projecting ends 11 andclose to a funnel-like outlet f into which two strainers are fitted.This outlet is directed toward the object to be cooled.

Any suitable mechanical intermittent means may be employed to rotate thecase b or it may be turned by hand and some indicating means or a stop,of which many forms may be suitable, is provided to insure the correctamount of rotation.

In use, the case is charged with the ampuls, containing say ethylchlorid, and after the object to be cooled is in position and theapparatus is to be used, the case is turned sufficiently to bring one of.the projecting ends opposite the outlet f to reach which it must passthe stop 6, which snaps the ends off thus permitting the contents of theampul to be discharged through the outlet. \Vhen the ampul so acted uponis emptied and a further cooling is necessary, the case b is turned onestage farther and thus the next ampul is opened and permitted todischarge its contents, and so on until all the ampuls are emptied,after which they are removed and a further supply is fitted into thecase. It will be seen that three of the ampuls which I have numbered 1,2 and 3 have been opened, the first two have been emptied and the thirdis in action and is discharging its contents, as shown by the arrow,through the sieves in the outlet. The severed ends of the ampuls areshown resting in the uppermost sieve which is slightly conical toprevent their interference with the fine jet of ethyl chlorid,

although I do not wish to limit myself to this exact construction.

Any suitable number of cartridges or bulbs may be employed and they maybe ready fitted in a case so as to be inserted en bloc to" replace thoseused. The means for manipulating the bulbs and efiecting their dischargemay be effected in any desired way.

It will be seen that I use the latent heat of evaporation of ethylchlorid, or its homologues or admixtures of the same, by whichtemperatures may be produced and maintained, if necessary, below zero,Fahr., without weighty or expensive appliances.

By suitable methods it has been found that suchbodies as above can bemade to cool 900 times their weight of copper one degree cent, within avery short space of time, and temperatures of minus thirty degreescent., can be obtained.

It will be understood that the discharge outlet of the ampul orequivalent is a fine capillary tube of say =from .1 to .25 of 2). mm.bore. 4

What I claim and desire to secure by Letters Patent is 1. An appliancefor cooling purposes comprising a movable carrier with means for holdingflasks, ampuls or the like containing highly volatile liquid, and meansfor opening the flasks or ampuls consecutively by moving the carrier.

2. An appliance for cooling purposes com prising a movable carrier withmeans for holding flasks, ampuls or the like containing highly volatileliquid, and means for opening the flasks or ampuls consecutively bymoving the carrier, said means being a holding flasks, ampuls or thelike contain- I ing highl volatile liquid, means for opening the asks orampuls consecutively by moving the carrier and an outlet from saidcarrier having a strainer in it.

4. An appliance for cooling purposes comprising a case, a rotary carrierin the case, means for holding flasks in the carrier, openings in thecarrier to receive the ends of the flasks and means external of thecarrier adapted to contact with and to break the said ends as thecarrier is rotated.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

ALBERT HENNING.

Witnesses:

HENRY FAIRBROTHER, BARBARA BROOM.

